If you are commuting to The Polyclinic, the SR 99 viaduct tunnel is now open to traffic. The tunnel is currently toll free. Tolling is expected to begin as soon as this summer. You can learn more about the new on-and off-ramps here.
Need to Learn How to Use the New Tunnels?
The Washington State Department of Transportation (WSDOT) has provided videos on their website.
Downtown Seattle Transit Tunnels Transitioning to Surface Streets
Starting March 23, 2019, King County Metro bus services will no longer operate in the Downtown Seattle Transit Tunnel and routes will instead travel on new pathways through downtown Seattle. This affects Metro routes 41, 74, 101, 102, 150, 255 and Sound Transit Express Route 550.
Photo courtesy of Washington State Department of Transportation